Oooh! I got one of those as a wedding gift! Don't have any specific recipies, but my favorite thing to do is to pour a bit of vanilla-flavored syrup in the expresso and then pour that into my hot, frothed, milk. Afterwards I often sprinkle cinnamon on top.

The vanilla-flavored syrup and other yummy flavors (caramel, hazelnut) can be found in your supermarket's coffee section.